Download ZIP-File via VBA

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Reetz, Michael (NLPV)

12 May 2021 12 May '21

22:18

Hello,

I'm trying to query and download occurences with some subs written in VBA. While querying works fine, download leads to errors.

At the end oft he query, I have a download link for a ZIP-archive. Putting this into a browser address field lets me download the archive. Giving it to a VBA-Object returns errors.

E.g.,

Set http = CreateObject("WinHttp.WinHttpRequest.5.1") strURL_Request = "https://api.gbif.org/v1/occurrence/download/" & strDownload http.setTimeouts 30000, 30000, 30000, 30000 http.Open "GET", strURL_Request, False http.send

returns a jason file that contains the download link. I extract this link and use it as parameter in the next step:

http.Open "GET", strURL_ZIP, False http.send

This results in a timeout. Using "Microsoft.XMLHTTP" alternativly returns "Access denied"

Is this a problem with our network restrictions or does the GBIF server block the query?

Kind regards Michael

Mit freundlichen Grüßen Im Auftrag Michael Reetz ***************************************** Nationalpark-Verwaltung Niedersächsisches Wattenmeer Virchowstr. 1 26382 Wilhelmshaven Tel.: +49 (0) 4421 911 291 Fax.: +49 (0) 441 799 61039 e-mail: michael.reetz@nlpv-wattenmeer.niedersachsen.demailto:michael.reetz@nlpv-wattenmeer.niedersachsen.de Web: http://www.http://www.nationalpark-wattenmeer.niedersachsen.de/nationalpark-wattenmeer.de Flussgebietsmanagement Übergangs-/Küstengewässer NLWKN * Betriebsstelle Brake / Oldenburg e-mail: michael.reetz@nlwkn.niedersachsen.demailto:michael.reetz@nlwkn.niedersachsen.de Web: http://www.nlwkn.niedersachsen.de http://www.nlwkn.niedersachsen.de/

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Matthew Blissett

12 May 12 May

23:56

Hi Michael,

It's been a long time since I used VBA, but this routine works when I run it in Excel — the zip file is downloaded to the local disc:

strDownload = "0211656-200613084148143" Set http = CreateObject("WinHttp.WinHttpRequest.5.1") strURL_Request = "https://api.gbif.org/v1/occurrence/download/" & strDownload http.Open "GET", strURL_Request, False http.Send Debug.Print (http.Status)

' (I have not bothered to parse the JSON output.) strURL_ZIP = "https://api.gbif.org/v1/occurrence/download/request/0211656-200613084148143...." http.Open "GET", strURL_ZIP, False http.Send Debug.Print (http.Status)

' From https://stackoverflow.com/questions/59598416/vba-download-form-url-with-logi... Set oStream = CreateObject("ADODB.Stream") oStream.Open oStream.Type = 1 oStream.write http.ResponseBody oStream.SaveToFile "C:\Users\…\Documents\download.zip", 2 oStream.Close Debug.Print ("Completed")

Our servers don't block this query, so I think it's most likely to be a restriction on your own network / computer. Note there is an HTTP redirect from the API server to the download server, but WinHttpRequest follows this automatically.

Kind regards,

Matt

On 12/05/2021 16:18, Reetz, Michael (NLPV) wrote:

...

Hello,

I’m trying to query and download occurences with some subs written in VBA. While querying works fine, download leads to errors.

At the end oft he query, I have a download link for a ZIP-archive. Putting this into a browser address field lets me download the archive. Giving it to a VBA-Object returns errors.

E.g.,

Set http = CreateObject("WinHttp.WinHttpRequest.5.1")

strURL_Request = "https://api.gbif.org/v1/occurrence/download/" & strDownload

http.setTimeouts 30000, 30000, 30000, 30000

http.Open "GET", strURL_Request, False

http.send

returns a jason file that contains the download link. I extract this link and use it as parameter in the next step:

http.Open "GET", strURL_ZIP, False

http.send

This results in a timeout. Using "Microsoft.XMLHTTP" alternativly returns „Access denied“

Is this a problem with our network restrictions or does the GBIF server block the query?

Kind regards

Michael

Mit freundlichen Grüßen Im Auftrag

Michael Reetz

Nationalpark-Verwaltung Niedersächsisches Wattenmeer Virchowstr. 1 26382 Wilhelmshaven Tel.: +49 (0) 4421 911 291 Fax.: +49 (0) 441 799 61039 e-mail: michael.reetz@nlpv-wattenmeer.niedersachsen.de mailto:michael.reetz@nlpv-wattenmeer.niedersachsen.de Web: http://www. http://www.nationalpark-wattenmeer.niedersachsen.de/_nationalpark-wattenmeer.de_

Flussgebietsmanagement Übergangs-/Küstengewässer NLWKN * Betriebsstelle Brake / Oldenburg e-mail: michael.reetz@nlwkn.niedersachsen.de mailto:michael.reetz@nlwkn.niedersachsen.de Web:__http://www.nlwkn.niedersachsen.de http://www.nlwkn.niedersachsen.de/

API-users mailing list API-users@lists.gbif.org https://lists.gbif.org/mailman/listinfo/api-users

Reetz, Michael (NLPV)

17 May 17 May

17:59

Hi Matt,

thanks for your help. Since I can put the URL in a browsers address field and download a file there without problems, it seems to be a restriction for MS Office and VBA. I've sent a question regarding this problem to our IT department.

Best regards Michael

Von: API-users api-users-bounces@lists.gbif.org Im Auftrag von Matthew Blissett Gesendet: Mittwoch, 12. Mai 2021 17:56 An: api-users@lists.gbif.org Betreff: Re: [API-users] Download ZIP-File via VBA

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Hi Michael,

It's been a long time since I used VBA, but this routine works when I run it in Excel - the zip file is downloaded to the local disc:

strDownload = "0211656-200613084148143" Set http = CreateObject("WinHttp.WinHttpRequest.5.1") strURL_Request = "https://api.gbif.org/v1/occurrence/download/"https://api.gbif.org/v1/occurrence/download/ & strDownload http.Open "GET", strURL_Request, False http.Send Debug.Print (http.Status)

' (I have not bothered to parse the JSON output.) strURL_ZIP = "https://api.gbif.org/v1/occurrence/download/request/0211656-200613084148143...."https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3a%2f%2fapi.gbif.org%2fv1%2foccurrence%2fdownload%2frequest%2f0211656%2d200613084148143.zip&umid=80cb9736-359f-40eb-816d-a014d8f099b4&auth=4456e5223a495a0240a5eada979a61a7fdbe9da6-b4c1e3909bf198573829b11759f8dd7372547122 http.Open "GET", strURL_ZIP, False http.Send Debug.Print (http.Status)

' From https://stackoverflow.com/questions/59598416/vba-download-form-url-with-logi... Set oStream = CreateObject("ADODB.Stream") oStream.Open oStream.Type = 1 oStream.write http.ResponseBody oStream.SaveToFile "C:\Users...\Documents\download.zip", 2 oStream.Close Debug.Print ("Completed")

Kind regards,

Matt

On 12/05/2021 16:18, Reetz, Michael (NLPV) wrote: Hello,

I'm trying to query and download occurences with some subs written in VBA. While querying works fine, download leads to errors.

At the end oft he query, I have a download link for a ZIP-archive. Putting this into a browser address field lets me download the archive. Giving it to a VBA-Object returns errors.

E.g.,

Set http = CreateObject("WinHttp.WinHttpRequest.5.1") strURL_Request = "https://api.gbif.org/v1/occurrence/download/"https://api.gbif.org/v1/occurrence/download/ & strDownload http.setTimeouts 30000, 30000, 30000, 30000 http.Open "GET", strURL_Request, False http.send

returns a jason file that contains the download link. I extract this link and use it as parameter in the next step:

http.Open "GET", strURL_ZIP, False http.send

This results in a timeout. Using "Microsoft.XMLHTTP" alternativly returns "Access denied"

Is this a problem with our network restrictions or does the GBIF server block the query?

Kind regards Michael

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Reetz, Michael (NLPV)

18 May 18 May

17:56

Dear Matt,

I've solved the problem with the help of a colleague. The correct proxy settings where missing.

Set http = CreateObject("WinHttp.WinHttpRequest.5.1") http.setProxy 2, strProxy

where strProxy contains the proxy string.

Best regards Michael

Von: API-users api-users-bounces@lists.gbif.org Im Auftrag von Matthew Blissett Gesendet: Mittwoch, 12. Mai 2021 17:56 An: api-users@lists.gbif.org Betreff: Re: [API-users] Download ZIP-File via VBA

Hi Michael,

It's been a long time since I used VBA, but this routine works when I run it in Excel - the zip file is downloaded to the local disc:

' From https://stackoverflow.com/questions/59598416/vba-download-form-url-with-logi... Set oStream = CreateObject("ADODB.Stream") oStream.Open oStream.Type = 1 oStream.write http.ResponseBody oStream.SaveToFile "C:\Users...\Documents\download.zip", 2 oStream.Close Debug.Print ("Completed")

Kind regards,

Matt

On 12/05/2021 16:18, Reetz, Michael (NLPV) wrote: Hello,

I'm trying to query and download occurences with some subs written in VBA. While querying works fine, download leads to errors.

At the end oft he query, I have a download link for a ZIP-archive. Putting this into a browser address field lets me download the archive. Giving it to a VBA-Object returns errors.

E.g.,

returns a jason file that contains the download link. I extract this link and use it as parameter in the next step:

http.Open "GET", strURL_ZIP, False http.send

This results in a timeout. Using "Microsoft.XMLHTTP" alternativly returns "Access denied"

Is this a problem with our network restrictions or does the GBIF server block the query?

Kind regards Michael

_______________________________________________

API-users mailing list

API-users@lists.gbif.orgmailto:API-users@lists.gbif.org

https://lists.gbif.org/mailman/listinfo/api-users

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Matthew Blissett
Reetz, Michael (NLPV)