EOSC-Future demo: notebooks, RoHUB API and json for France

Author: Anne Fouilloux

demo-eosc-future/README.md

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+# Demo for EOSC-Future
+
+The two notebooks:
+- RELIANCE-Datacube-featuring-EOSC_v0.2.ipynb
+- RELIANCE_v0.2-France.ipynb
+
+demonstrate the use of ADAM-API and RoHUB-API from Python Jupyter notebooks. 
+
+During the demo, they have been executed on a "bundle" EGI-notebook + B2DROP and this is why some results in RELIANCE_v0.2-France.ipynb are saved in a folder called `b2drop`. This folder is not created by the user but is automatically available as part of the EGI-notebook + B2DROP bundle service. Everything you store in the `b2drop` folder is saved in your B2DROP account. 
+
+1. It won't work if you are not using EGI-notebook + B2DROP bundle service. Then you can removed b2drop where saving results and store everything locally on your notebook and then as internal resource in RoHUB.
+2. To make sure we do not share our credentials, username, passwords and/or API keys are stored in files. These files need to exist and contain your credentials before running the notebooks.
+
+## What do we do on the two notebooks?
+
+The structure of the two notebooks are very similar:
+
+1. Authentication to ADAM-API: make sure to create a file `adam-key` with your ADAM-API key;
+2. Datasets Discovery: we discover all the datasets but when going through them, we only print `EU_CAMS` results (you need to change it for your own datasets). In this step, we also get the dataset identifiers. We have selected a dataset identifier `69626:EU_CAMS_SURFACE_PM10_G`. Adapt it for your own datasets;
+3. Products Discovery: we discover products over a specific area (Italy or France) and specific time range. The geometry for the spatial search is provided as `geojson` (I haven't fully understood which encoding standard to follow: some of my geojson files worked and some did not);
+4. Data Access: ADAM-Api returns a `zip` file containing the results of your request. You need to unzip it to analyze your data;
+5. Data Analysis and Visualization: when `geotiff`, I read all the data with `xarray`. 
+
+In the second notebook `RELIANCE_v0.2-France.ipynb`, there is an additional step for saving the results into a code-centred Research Object in RELIANCE.
+
+You would need to authenticate to RoHUB:
+- `rohub-user` contains your username (not sure what to do when using ORCID)
+- `rohub-pwd` contains your password.
+
+When adding geolocation, I could not use the same geojson I used with ADAM-API. Your geojson needs to follow OGC EO Dataset Metadata GeoJSON(-LD) Encoding Standard (added in this repo).
+