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< title > OpenAIRE API documentation - Authentication Registered Services (Basic)< / title >
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< a href = "/" > Home< / a >
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< a href = "overview.html" > API & Resources< / a >
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< a href = "authentication.html" > Authentication< / a >
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< a href = "registeredService.html" > Registered Services< / a >
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< span > Basic< / span >
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< li > < a href = "./authentication.html" > General Information< / a > < / li >
< li > < a href = "./personalToken.html" > Personal Token< / a > < / li >
< li > < a href = "./registeredService.html" > Registered Services< / a >
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< li class = "uk-active" > < b > < a href = "./basic.html" > Basic< / a > < / b > < / li >
< li > < a href = "./advanced.html" > Advanced< / a > < / li >
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< h2 class = "uk-text-center" id = "service" > Basic service authentication and registration< / h2 >
< p > For the < b > Basic Authentication< / b > method the OpenAIRE AAI server generates a pair of < em > Client ID< / em > and < em > Client Secret< / em >
for your service upon its registration. The service uses the client id and client secret to obtain the access
token for the OpenAIRE APIs. The OpenAIRE AAI server checks whether the client id and client secret sent is valid.
< / p >
< h4 > How to register your service< / h4 >
< p > To register your service you need to:< / p >
< ol >
< li > Login to OpenAIRE. In case you are not already a member you will need to register first.< / li >
< li > Go to your < a href = "https://services.openaire.eu/uoa-user-management/registeredServices" target = "_blank" > Registered Services< / a > page and click the New Service button.< / li >
< li > Provide the < span class = "uk-text-primary" > < b > "Ν < / b > < / span > (mandatory) of your service.< / li >
< li > Select the Basic < span class = "uk-text-primary" > < b > "Security level"< / b > < / span > .< / li >
< li > Click the < span class = "uk-text-primary" > < b > Add New Service< / b > < / span > button.< / li >
< / ol >
< p > Once your service is created, the < em > Client ID< / em > and < em > Client Secret< / em > will appear on your screen. Click
< span class = "uk-text-primary" > "OK"< / span > and your new service will be appear in the list of your < a href = "https://services.openaire.eu/uoa-user-management/registeredServices" target = "_blank" > Registered Services< / a > page.< / p >
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< h4 > How to make a request< / h4 >
< h5 > < span class = "uk-text-bold" > Step 1.< / span > Request for an access token< / h5 >
< p >
To make an access token request use the < em > Client ID< / em > and < em > Client Secret< / em > of your service.
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< pre class = "uk-text-left" >
curl -u {CLIENT_ID}:{CLIENT_SECRET} \
-X POST 'https://aai.openaire.eu/oidc/token' \
-d 'grant_type=client_credentials'< / pre >
< p > where < b > {CLIENT_ID}< / b > and < b > {CLIENT_SECRET}< / b > are the < em > Client ID< / em > and < em > Client Secret< / em > assigned to your service
upon registration.
< p >
The response is:
< pre class = "uk-text-left" >
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{
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"access_token": ...,
"token_type": "Bearer",
"expires_in": ...
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}< / pre >
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< / p >
< / p >
< div class = "uk-alert-danger" uk-alert >
< p > Store the access token confidentially on the service side.< / p >
< / div >
< h5 > < span class = "uk-text-bold" > Step 2.< / span > Make a request< / h5 >
< p > To access the OpenAIRE APIs send the access token returned in < span class = "uk-text-primary" > < b > Step 1< / b > < / span > .< / p >
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< pre class = "uk-text-left" >
GET https://api.openaire.eu/{resourceServicePath}
Authorization: Bearer {ACCESS_TOKEN}< / pre >
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< h4 > Error messages< / h4 >
< p > 401 - Missing username or/and password< / p >
< pre class = "uk-text-left" >
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{
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"error": "unauthorized",
"error_description": "Client id must not be empty!"
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}< / pre >
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< p > 401 - Wrong username or/and password< / p >
< pre class = "uk-text-left" >
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{
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"error": "unauthorized",
"error_description": "Bad credentials"
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}< / pre >
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< p > 400 - Missing grant type< / p >
< pre class = "uk-text-left" >
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{
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"error": "invalid_request",
"error_description": "Missing grant type"
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}< / pre >
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< p > 400 - Wrong grant type< / p >
< pre class = "uk-text-left" >
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{
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"error": "unsupported_grant_type",
"error_description": "Unsupported grant type: ..."
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}< / pre >
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