After a bit more experimentation, I have something of an ugly hack that works for a web page but won't work for a server app. The issue is mostly persuading the script to load the WASM file RDKit_minimal.wasm that RDKit_minimal.js needs. Greg's demo HTML files show how this can be done in a web page, so I have left the importing of RDKit_minimal.js there, and then used it via the window variable in the ReactJS components. I have RDKit_minimal.js and RDKit_minimal.wasm in my public folder in the react app tree.
So, in index.html I have the line: <script src="./RDKit_minimal.js"></script> in between <body></body> and <head></head>. In my React component I have: constructor(props) { super(props); this.state = { rdkit: null, } } async componentDidMount() { let rdkit_mod = await window.initRDKitModule(); this.setState({rdkit: rdkit_mod}); console.log(this.state.rdkit.version()); } I can then pass the rdkit instance into other components and functions via the props as normal: function DrawMol(props) { if (props.rdkit) { let mol = props.rdkit.get_mol(props.smiles); let svg = mol.get_svg(); return (<div><img src={`data:image/svg+xml;base64,${btoa(svg)}`} alt={''} /></div>); } else { return (<div>{props.smiles}</div>); } } I believe that node does have a WASM loader, and if I can work out how to use that directly, I'll post a further reply. Hopefully that all makes sense and might be helpful to other people. Best, Dave On Wed, Apr 14, 2021 at 5:10 PM David Cosgrove <davidacosgrov...@gmail.com> wrote: > Hi, > > I have compiled the latest RDKit (2021_03_1) into .js and .wasm files > using the Dockerfile in $RDBASE/Code/MinimalLib/docker. I would like to > use these in a reactjs app. This appears to be non-trivial and after > several days of googling and experimentation I am no further forward. Has > anyone had success with this that they can share? > > Thanks, > Dave > > > -- > David Cosgrove > Freelance computational chemistry and chemoinformatics developer > http://cozchemix.co.uk > > -- David Cosgrove Freelance computational chemistry and chemoinformatics developer http://cozchemix.co.uk
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